Angular Contact Steel Ball Bearing 7016AC-2RZ DBB

The Angular Contact Steel Ball Bearing 7016AC-2RZ DBB is a high-performance mechanical component engineered for medium-to-large bore spindle applications. With an 80mm bore and 125mm outside diameter, this bearing is constructed from premium hardened chrome steel for exceptional durability under simultaneous radial and axial loads. The 'AC' contact angle provides enhanced axial stiffness, making it ideal for spindles that encounter significant thrust during machining operations. Its 2RZ double rubber non-contact seals allow for an impressive limiting speed of 13,100 RPM while providing a reliable barrier against dust and industrial contaminants. Certified to P4 precision standards, it ensures minimal runout and vibration in high-precision CNC spindles and industrial motors.

Hardened chrome steel rings and ball set
80mm Bore x 125mm OD x 22mm Width
2RZ non-contact seals for high-speed protection
Optimized AC contact angle for increased thrust capacity
High limiting speed (13,100 RPM Grease)
P4 Precision class for rotational stability

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

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Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Specifications

Technical Parameter	Engineering Specification Value
MECHANICAL	weight: approx 0.85 kg \| sealingType: 2RZ (Non-contact seal) \| precisionClass: P4 / DBB
INSIDE DIAMETER	80 mm
OUTSIDE DIAMETER	125 mm
WIDTH DIMENSION	22 mm
MAX SPEED GREASE	13100 RPM
BASIC LOAD RATING CR	32.3 KN
BASIC LOAD RATING COR	31 KN
BEARING TYPE	Angular Contact Steel Ball
BALL MATERIAL	Hardened Chrome Steel (GCR15)
RING MATERIAL	High-Carbon Steel

Industrial Applications

Usage Scenario	Target Industry
High-Precision CNC Spindle Units	Machine Tool Manufacturing
Industrial Electric Motors and High-Speed Machinery	Automotive and Engineering Production
Vertical and Horizontal Machining Center Spindles	Aerospace and Defense Machining
Precision Lathes and Milling Machine Spindles	Industrial Automation and Robotics
Automotive Powertrain and Performance Testing Equipment	General Precision Engineering
Industrial Gearboxes and Automated Transmissions	General Engineering

Technical FAQ & Operational Guide

What is the speed limit for the 7016AC-2RZ DBB bearing?

This precision bearing is designed for a grease-lubricated limiting speed of up to 13,100 RPM.

How does the AC contact angle benefit this 80mm bore model?

The AC contact angle provides higher axial stiffness, allowing the spindle to handle significant thrust loads during machining without compromising rotational precision.

What are the exact dimensions of the 7016 model?

The 7016AC-2RZ DBB features an inside diameter of 80mm, an outside diameter of 125mm, and a width of 22mm.

How is the rotational balancing calibrated on this spindle motor?

Every spindle motor is dynamically balanced in accordance with the ISO 1940 balancing standard to guarantee vibration-free running and maximum stability at high RPMs.

What are the runout tolerances of the shaft and collet interface?

The internal shaft taper maintains a runout accuracy tolerance of under 0.003mm (3 microns), maintaining precise tool concentricity and preventing premature cutter wear.

What cooling precautions are built-in to prevent heat exhaustion?

Built-in temperature dissipation channels support continuous water/liquid cooling circulation or forced fan airflow, preventing thermal expansion of components.

Is this spindle motor compatible with standard VFD inverters and collets?

Yes, the spindle supports direct electrical integration with standard variable frequency drives (VFD) and accepts industrial ER collets (ER11, ER20, ER25, or ER32) to match standard toolholder dimensions.

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Angular Contact Steel Ball Bearing 7016AC-2RZ DBB

Hardened chrome steel rings and ball set

80mm Bore x 125mm OD x 22mm Width

2RZ non-contact seals for high-speed protection

Optimized AC contact angle for increased thrust capacity

High limiting speed (13,100 RPM Grease)

P4 Precision class for rotational stability

⚡ Quick Technical Datasheet:

Power OutputN/A

Max SpeedN/A

Voltage RatingN/A

Collet InterfaceER Standard

Comparative Technical Spindle Motor Configurations Matrix

Use the structural data catalog matrix below to evaluate power outputs, maximum RPM, operating voltages, and cooling styles across standard TriQuench CNC spindle models.

Spindle Capacity	Operating Speed	Operating Voltage	Cooling System
12.0 kW	18,000 RPM	380 V	Water-Cooled
0.8 kW	24,000 RPM	220 V	Air-Cooled (Long Shaft)
3.7 kW	40,000 RPM	380 V	Water-Cooled ISO20
9.0 kW	18,000 RPM	380 V	Air-Cooled

Technical Parameter

Engineering Specification Value

MECHANICAL

weight: approx 0.85 kg | sealingType: 2RZ (Non-contact seal) | precisionClass: P4 / DBB

INSIDE DIAMETER

80 mm

OUTSIDE DIAMETER

125 mm

WIDTH DIMENSION

22 mm

MAX SPEED GREASE

13100 RPM

BASIC LOAD RATING CR

32.3 KN

BASIC LOAD RATING COR

31 KN

BEARING TYPE

Angular Contact Steel Ball

BALL MATERIAL

Hardened Chrome Steel (GCR15)

RING MATERIAL

High-Carbon Steel

Usage Scenario

Target Industry

High-Precision CNC Spindle Units

Machine Tool Manufacturing

Industrial Electric Motors and High-Speed Machinery

Automotive and Engineering Production

Vertical and Horizontal Machining Center Spindles

Aerospace and Defense Machining

Precision Lathes and Milling Machine Spindles

Industrial Automation and Robotics

Automotive Powertrain and Performance Testing Equipment

General Precision Engineering

Industrial Gearboxes and Automated Transmissions

General Engineering